SRE0082

Peroxidase from horseradish

• 동의어(들): Peroxidase from horseradish, Donor:hydrogen-peroxide oxidoreductase, Horseradish peroxidase
• CAS Number: 9003-99-0
• 효소 위원회 번호: 1.11.1.7 (BRENDA, IUBMB)
• EC Number: 232-668-6
• MDL number: MFCD00071339
• UNSPSC 코드: 12352204
• NACRES: NA.54

속성

• 설명: For research or further manufacturing use only. Not intended for direct use in humans or animals. Non-TSCA use only in US.
• Quality Level: 400
• 특이 활성도: ≥250 units/mg solid (using pyrogallol)
• 배송 상태: wet ice
• 저장 온도: 2-8°C
• SMILES string: [O+H2]O[O-]
• InChI: 1S/H2O3/c1-3-2/h1-2H
• InChI key: JSPLKZUTYZBBKA-UHFFFAOYSA-N

설명

일반 설명

Horseradish peroxidase is isolated from horseradish roots (Amoracia rusticana) and belongs to the ferroprotoporphyrin group of peroxidases. HRP is a single chain polypeptide containing four disulfide bridges. It is a glycoprotein containing 18% carbohydrate. The carbohydrate composition consists of galactose, arabinose, xylose, fucose, mannose, mannosamine, and galactosamine depending upon the specific isozyme. Its molecular weight (~44 kDa) includes the polypeptide chain (33,890 Daltons), hemin plus Ca²⁺ (~700 Daltons), and carbohydrate (~9,400 Daltons). At least seven isozymes of HRP exist. The isoelectric point for horseradish peroxidase isozymes ranges from 3.0 - 9.0.

애플리케이션

Peroxidase from horseradish has been used in western blotting.

단위 정의

One pyrogallol unit will form 1.0 mg purpurogallin from pyrogallol in 20 sec at pH 6.0 at 20 °C.

분석 메모

The RZ (Reinheitszahl) is the absorbance ratio A₄₀₃/A₂₇₅ determined at 0.5-1.0 mg/ml in deionized water. It is a measure of hemin content, not enzymatic activity. Even preparations with high RZ may have low enzymatic activity.

기타 정보

View more information on peroxidase at www.sigma-aldrich.com/enzymeexplorer.

안전성 정보

• 픽토그램: GHS08
• 신호어: Danger
• 유해 및 위험 성명서: H334
• 예방조치 성명서: P261 - P284 - P501
• Hazard Classifications: Resp. Sens. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1